1) A condition resulting in tweeting frequent, short bursts of the most minute daily activities. 2) The collection of tweets from a group of people about the same event, resulting in highly repetitive clumps of observations.

1) Oh, I had to unfollow her, she had a bad case of twitterhea flooding my iPhone.

2) since I wont physically be at #railsconf this year, i'll attend virtually by lurking in the irc channel and consuming the twitterhea all day.

A Twitter condition afflicting Twitter user that feels compelled to tweet constantly, about every meaningless thing they are doing.

Basically anyone with more updates than followers. Some would go so far as to qualify anyone who tweets more than 6 times per day as someone suffering from Twitterhea. There's no way your life is that interesting!